<div id="error_message" class="alert alert-danger alert-dismissible admin-do-alert">
    <button type="button" class="close" data-dismiss="alert" aria-hidden="true">×</button>
    <h4><i class="icon fa fa-ban"></i> 错误提示!</h4>
    {if $Think.session.error_message}
    {$Think.session.error_message}
    {/if}
</div>
<script>
    var msg = $('#error_message');
    msg.delay(500).fadeIn();
    msg.delay(3000).fadeOut();
</script>